1994 GMC Truck stalling

Tiny
BCAM
  • MEMBER
  • 1994 GMC TRUCK
  • V8
  • 4WD
  • AUTOMATIC
  • 185,000 MILES
Truck runs fine until you put on brake or turn on head lights then it stalls.
Friday, January 22nd, 2010 AT 6:56 AM

1 Reply

Tiny
MICKEY-D
  • MECHANIC
  • 304 POSTS
It sounds like your idle speed while in gear is too low. You may have an idle solenoid not working, or it might be adjusted incorrectly. When you turn an accessory on you load the alternator, thus slowing the engine RPM enough to cause it to stall. Raise the Idle speed.
Mickey-d
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Tuesday, February 23rd, 2010 AT 11:56 AM

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